Summer Comfort

 April 26, 1922, Menasha Record

Despite the bad quality of the above ad, we're talking about sleeping porches here.   Before electric fans or affordable air conditioning were a common thing, families often created such rooms, where the younger set would sleep during summer.  They first gained popularity at the turn of the 20th century, and growing up in an un-air conditioned house, I would have killed some nights for access to one of those.